Struggling to find a gift for someone who has everything? Explore our guide to choosing the perfect handcrafted kaleidoscope.

A field guide to using a teleidoscope: which subjects to try, how distance and scale change the pattern, how to pan and rotate, and what fails.

Chapter X of Brewster's 1858 book describes a kaleidoscope with a lens for distant objects. What he specified, and how it relates to the teleidoscope.

A teleidoscope has no object chamber: a ball lens turns whatever you point it at into a symmetrical pattern. Optics, history and how to choose one.

Kaleidoscope vs teleidoscope: one holds a sealed cell of cut glass, the other a ball lens that turns whatever you point it at into a mandala.